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Introduction of Plant Physiology. We covered all the Introduction of Plant Physiology in this post for free so that you can practice well for the exam.
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mcq on Introduction of Plant Physiology for Students
Which of the following is not considered an essential micronutrient for plants?
(a) Boron
(b) Zinc
(c) Sodium
(d) Copper
Option c – Sodium
Which plant hormone is primarily associated with the ripening of fruits?
(a) Cytokinin
(b) Abscisic Acid
(c) Ethylene
(d) None of these
Option c – Ethylene
Which gas is vital for the process of photosynthesis in plants?
(a) CO
(b) CO₂
(c) N₂
(d) O₂
Option b – CO₂
Which element is present in the structure of chlorophyll?
(a) Iron
(b) Copper
(c) Magnesium
(d) Manganese
Option c – Magnesium
Certain Organisms can carry out photosynthesis using non-visible Light. These are mostly
(a) Trees
(b) Algae
(c) Bacteria
(d) Fungi
Option c – Bacteria
What are plants that typically grow on sandy soil called?
(a) Lithophytes
(b) Xerophytes
(c) Chasmophytes
(d) Psammophytes
Option d – Psammophytes
Insect-eating plants are usually found in soil that lacks which nutrient?
(a) Calcium
(b) Nitrogen
(c) Magnesium
(d) Phosphorus
Option b – Nitrogen
Which of the following are required for autotrophic Nutrition?
(a) CO₂ and H₂O₂
(b) Chlorophyll
(c) Sunlight
(d) All of the above
Option d – All of the above
During photosynthesis, which of the following transformations takes place?
(a) Light energy is converted into chemical energy
(b) Chemical energy is converted into Light energy
(c) Chemical energy is transformed into electrical energy
(d) Light energy is changed into mechanical energy
Which cell organelle is directly involved in the photosynthesis process?
(a) Chloroplast
(b) Mitochondria
(c) Golgi bodies
(d) Endoplasmic reticulum
Option a – Chloroplast
What is the main reason behind upward water movement in plant stems?
(a) Osmosis
(b) Photosynthesis
(c) Transpiration
(d) Diffusion
Option c – Transpiration
Some bacteria can perform photosynthesis using the invisible Spectrum of Light. This ability is found in
(a) Trees
(b) Algae
(c) Fungi
(d) Bacteria
Option d – Bacteria
Photosynthesis in plants primarily utilizes which parts of the electromagnetic Spectrum?
(a) Red and Blue
(b) Green and Yellow
(c) Blue and Orange
(d) Violet and Orange
Option a – Red and Blue
Which of the following is classified as a plant hormone?
(a) Adrenaline
(b) Insulin
(c) Oxytocin
(d) Auxin
Option d – Auxin
Which plant tissue is responsible for transporting water and Minerals?
(a) Xylem
(b) Phloem
(c) Cortex
(d) Cambium
Option a – Xylem
Which part of the plant is responsible for distributing prepared Food?
(a) Xylem
(b) Phloem
(c) Cortex
(d) Cambium
Option b – Phloem
Under which condition does evaporation occur more rapidly?
(a) Low wind speed
(b) High humidity
(c) Low humidity and high temperature
(d) High water content in soil
Option c – Low humidity and high temperature
What is the process through which plants make their own Food?
(a) Carbohydrolysis
(b) Metabolic synthesis
(c) Photosynthesis
(d) Photorespiration
Option c – Photosynthesis
Peroxisomes in plant cells are involved in the synthesis of which compounds?
(a) Glucose
(b) Fatty Acids
(c) Glycine and serine
(d) Nucleotides
Option c – Glycine and serine
What is the main structural component of connective tissue?
(a) Lipid
(b) Carbohydrate
(c) Cholesterol
(d) Collagen
Option d – Collagen
Which cells are responsible for bone formation?
(a) Osteoclasts
(b) Osteoblasts
(c) Chondroblasts
(d) Chondroclasts
Option b – Osteoblasts
When does photosynthesis generally take place?
(a) Day
(b) Night
(c) Day and Night
(d) None of these
Option a – Day
From which part of the plant does most evaporation take place?
(a) Root
(b) Stem
(c) Leaf
(d) Entire surface of the plant
Option c – Leaf
What is the name of the process where excess water is released from the plant in droplet form?
(a) Transpiration
(b) Guttation
(c) Secretion
(d) Excretion
Option b – Guttation
Which of the following is not a primary function of a green leaf?
(a) Food production
(b) Gas exchange
(c) Water evaporation
(d) Transport of Food and water
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